Internal-combustion engine.



E. L. RUSSELL.

INTERNAL GOMBUSTIQN ENGINE.

www y a; Ig# i I UNITED sratinsmrwajrnnr OFFICE.

EDWIN'L. RUSSELL, OF CLEVELAND, OHIO.

INTERNALCOMBUSTION Encinas,`

To all fie/omit may concern.'

Be it known thatfl, EDWIN'L. RUSSELL, a citizen of the -United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented" a new and useful Internal- Combustion Engine, of which the following is a' specilication.

T he object of my invention is to-produce a rotary valve structure in association with a chamber in which there are sudden in! creases ot' pressure, such for instance as the" .creases or' pressure witliinfeylinder 10 may at time actupon valve 12 to ltend to lift cylinder' of an internal combustion engine, the construction of the valve and the valve drivingmechanism being such that,V while the valve may yield from its seat under` gradually applied force,l it will be retained momentarily upon its seat against suddenly applied forces.

In the accompanying drawings, which illustrate my invention, Figure 1 1s an axial section through the valve easing, and Fig. 2 is a bottom view ol part of the driving connection.

In the drawings, 10 indicates the cylin der of an internal combustion engine ot an ordinary type in which there are sudden increases of pressure. Communicating with the cylinder 10, in any desired manner, is a valve chamber 11 in which is mounted a valve 12, in the present drawings the valve being shown as a tapered plug valve. Valve 12 is so mounted within its casing that it may not only move along its seat (i. e. rotatively in the present instance), but may also be moved toward and from its seat (2. e. axially in the presentI instance), and the said valve is provided with suitable pas sages by means of which desired coperating passages may be controlled. The valve is normally held to its seat by its own weight, (and an added spring if desired) and is connected to a driving shaft 13 in such manner that under ycertain conditions. where there is an abnormal resistance of the valve tov movement along its seat, there may be relative movement between the driver and the valve such as to cause a movement of the valve bodily toward or from its seat. In the present form this driving connection comprises a V-slia-ped slot 14 across the face of an annular head 14a carried by shaft 13, and 'a coperating and correspondingly Vshaped projection 15 extending across the face of an annular head l5"` carried by the valve, the arrangement being such that rotation of the shaft 13 Specification of Letters Patent.

Application filed August 21,1911.

Paten-ted J une 2, 1914. seriainaeaaaea. Y

in either direction,l while the valve is sta- -'tionary, will cause a moven'ient of the `valve away from its seat. The'irietion between `the projection V115 and the sidesot' the slot v14 will, if the resistance of the .valve 12 to movement along itsseat lbe not too great,

`seat its resistance to movement along its seat willbe decreased, i

lin the arrangement shown, sudden init troni itsseat anld,iniorderto prevent this aetioinl provide .the valve at. its upper end with la ldash-pot,pist-on 1G fitted `within a daslrpotl 17,(v 4Coiinnunicating with the dasl'rpotul is a supply passage 18 leading from a reservoir 19 and'supply passage 18 is controlled by a valve 21 which permits free flow from reservoir 19 to dash-pot 17 but -prevent-s, or restricts, tlow from dashpot 17 to reservoir 19. A by-pass 22 leads from dash-pot 17 to reservoir 19. The application ot driving force to valve 12 from driving shaft 13 through the connect-ion 14m-15 is gradual and .the possible How through pass 22 is sutlicient to permit axial movement of the valve upon relative movement of thedriver but if there be a suddenly Iapplied force tending to lift valve 12 it will be resisted by the dashpot construction, as will be clearly apparent.

I claim as my invention:

1. The combination, with a chamber subject to sudden increases of pressure, of a passagecommunicatingwithsaidchamberand having a valve seat, a valve mounted on said seat and movable away from said seat as well as along said seat, a driver for said valve, interengaging members carried by said valve and driver permitting independent advancement'of the driver to cause movement of the valve away from its seat, and a dash-pot con nected with the valve and resisting sudden movements of the valve away from its seat.

2. The combination, with a chamber subject to sudden increases of pressure, ot a ent advancement of the driver to cause movement of the valve away from its seat, and a said valve and driverpermitting independent angular advancement of the driver to cause axial`- movement of the valve away from its seat, and a dash pot connected with the valve and resisting sudden movements of the valve 'away from its seat.

4. The combination, with a chamber sub ject to sudden increases of pressure, of a passage communicating with. said chamber and having a valve seat, a rotary axially tapered valve mounted in lsaid chamber on said seat and axially movable, a driver for said valve, interengaging members carried by said valve and driver permitting independent angular advancement of the driver to causeaxialinovement of the valve away from its seat, and a dash pot connected with the valve and resisting sudden movements of' the valve axially.

5. The combination, with a chamber subject-t0 -sudden increases of pressure, of a. passage communicating with said chamber and having a'va-lve seat, a valve mounted on said seat and movable away from said seat aswell as along said seat, a driver for said valve, inter-engaging members carried by said valve and driver permitting independ ent advancement of the driver to cause movement :of the valve away from its-seat, and a plastic abutment for said valve. Y

3. The combination, With 'a chamber sub` ject to sudden increases of 'pressureof a pas- .sage communicating 'with said chamber and having a valvev seat, a rotary axiallyv'tape'real valve mounted in'said chamber on said seat i and axiallymovable, a driver for said valve, interengaging members carried .by said Valve and' driver permitting independent angular 4advancement of the driver to cause axial movement of the valve away from its seat, and a plastic abutment for the Valve laxially thereof. Y

In Witness whereof, I, have hereunto set .my hand and seal at Indianapolis, Indiana, this 16th day of August, A, D. one thousand nine hundred and eleven.

EDWIN L. RUSSELL. Y' [n s] Witnesses :A y

FRANK A. FAHLE, G. B. SGHLEY. 

